The stable clamping unit in 4-column technique ensures minimum deflection and allows for platens and hydraulic lifting devices to be precisely guided. Since being equipped with the retractable injection unit FIFO B, deflections within the nozzle area are almost completely reduced due to a minimum platen through-hole and the additional contact force of the injection unit. With the D 969.300 Z (S1) and the D 969.400 Z (S1) SEALMASTER for the field of precision seals and O-rings, DESMA developed special machines with very high specific surface compressing and high deflection resistance with compact external dimensions – just one example of many of the innovative strength of the enterprise.